.form-container{
  position: fixed;
  background-color: rgba(0,0,0,0.5);
  width: 500px;
  height: 300px;
  top: 50%;
  left:50%;
  transform: translate(-50%,-50%);
  padding: 20px;
}
.login-title{
  height: 80px;
  line-height: 80px;
  text-align: center;
  font-size: 30px;
  color: #fff;
}
.login-form-button {
  width: 100%;
}